Seiko Cal. 3871 - 361

Released in 1967, the Cal. 3871 with design code 361 was part of Seiko's domestic market collection. Powered by the 3871 caliber with 19j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-73df039dbaba]

Also known as: Navigator, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1967

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